"Today we had five dog teams out working the area around Kennett High School," said New Hampshire Fish and Game Lt. Wayne Saunders.

On Wednesday, she was caught on school surveillance cameras at 2:30 p.m.

Since then there have been no text messages, no emails and no phone calls from Abigail.

A ping from her cellphone appeared around 6:30 p.m. Wednesday near Cranmore Mountain Resort, shortly before she was reported missing.

Cranmore president Ben Wilcox said his staff is doing its part to help.

"We have a lot of acreage here, and we have a crew on the mountain doing preparatory work for the winter, so we all have our eyes open everywhere," said Wilcox.

Authorities said tips are coming in from everywhere, and by Monday evening there were more than 300 tips but no solid leads.

"I know that we are coming into almost a week, but I know we have the manpower and resources to continue to work this case until we come to a point where we say all leads have been investigated. We aren't there yet," said New Hampshire Associate Attorney General Jane Young.